Skip to content
  • 🚚 Free shipping over $25 🚚
  • 🚚 Free shipping over $25 🚚
Model Train StoreModel Train Store
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • HO Scale Model Trains
    • Layout Accessories
    • Vehicles
    • Rolling Stock
    • Couplers and Wheelsets
    • Passenger Cars
    • Locomotives
    • Detail Parts
    • Pre-Order
    • Track and Accessories
    • Decals
    • Freight Cars
  • Trains by Brand
    • Class One Model Works
    • Athearn
    • Bachmann Trains
    • Brekina and PCX87 Vehicles
    • Lionel Trains
    • Tangent Scale Models
    • Rapido Trains
    • Broadway Limited Imports
    • ScaleTrains
    • MTH Electric Trains
    • Atlas Model Railroad Co.
    • Walthers Model Trains
    • LGB
    • Märklin
  • O Gauge Model Trains
    • Pre-Order
    • Locomotives
    • Rolling Stock
    • Holiday Themed
    • Layout Accessories
    • Track and Accessories
    • Power and Command Control
    • Couplers and Wheelsets
  • N Scale Model Trains
    • Pre-Orders
    • Track and Accessories
    • Decals
    • Layout Accessories
    • Locomotives
    • Vehicles
    • Rolling Stock
    • Couplers & Wheelsets
  • Model Train Clearance
Home / O Gauge Model Trains / Power and Command Control
-73%
MTH 50-1039 DCS 2 TIU Track Interface Unit With Wi-Fi

MTH 50-1039 DCS 2 TIU Track Interface Unit With Wi-Fi

$359.99 Original price was: $359.99.$98.99Current price is: $98.99.

Buy Now
SKU: D2HPD 7815450460373 Categories: O Gauge Model Trains, Power and Command Control Tags: DCS Component, O PREORDER, Pre-order, Trains
  • Get the Best for Less
  • 7-Day Returns, 100% Quality
  • Your satisfaction is 100% guaranteed.
  • Peace of Mind with Every Purchase
Browse
  • HO Scale Model Trains
    • Couplers and Wheelsets
    • Decals
    • Detail Parts
    • Freight Cars
    • Layout Accessories
    • Locomotives
    • Passenger Cars
    • Pre-Order
    • Rolling Stock
    • Track and Accessories
    • Vehicles
  • Model Train Clearance
  • N Scale Model Trains
    • Couplers & Wheelsets
    • Decals
    • Layout Accessories
    • Locomotives
    • Pre-Orders
    • Rolling Stock
    • Track and Accessories
    • Vehicles
  • O Gauge Model Trains
    • Couplers and Wheelsets
    • Holiday Themed
    • Layout Accessories
    • Locomotives
    • Power and Command Control
    • Pre-Order
    • Rolling Stock
    • Track and Accessories
  • Trains by Brand
    • Athearn
    • Atlas Model Railroad Co.
    • Bachmann Trains
    • Brekina and PCX87 Vehicles
    • Broadway Limited Imports
    • Class One Model Works
    • LGB
    • Lionel Trains
    • Märklin
    • MTH Electric Trains
    • Rapido Trains
    • ScaleTrains
    • Tangent Scale Models
    • Walthers Model Trains
  • Description
  • Reviews (0)

MTH 50-1039 DCS 2 TIU Track Interface Unit with Wi-Fi

Today’s DCS Digital Command System features an all-in-one WiFi Track Interface Unit (WTIU) that brings true interactive wireless control to a model railroad. Users utilize their own smart device — iOS or Android — and an intutive app to run multiple tracks, hundreds of trains and control switches and accessories using the separately sold AIU Accessory Interface Unit. Bi-directional communication between locomotives and the system’s WTIU makes adding and programming locomotives simple and easy. No more ID numbers to remember and no complex icons to decipher. It’s fast, it’s easy and it’s fun!

DCS can also be controlled with a separately sold DCS Handheld Controller. Regardless of how you control it, DCS is compatible with all Proto-Sound 2.0 or 3.0 equipped locomotives as well as S Gauge and O Gauge locomotives equipped with Lionel® TMCC® and Legacy™ onboard systems; any conventional AC-powered locomotives; or conventional analog DC-powered locomotives in other scales, including N, HO, and G Gauge.

Featuring four channels, the new WTIU can now control conventional AC or DC locomotives allowing the user to control command and non-command equipped locomotives on the same track at the same time. The WTIU sets up in seconds and doesn’t require a home WiFi system to operate and can receive commands from an unlimited number of smart devices.

WHAT IS COMMAND CONTROL?

In conventional model train operation, an AC or DC transformer varies track voltage to adjust engine speed and direction. Command systems such as DCS, however, put a constant voltage on the track (around 18 volts for DCS) and vary speed by telling each engine how much of that voltage to use.

Unlike conventional control, command control allows different engines to do different things, even when they are on the same track — like run at different speeds, go in different directions, or make different sounds. You can even combine several engines into a “lashup,” working together under a single throttle.

How it works: In the DCS system, commands such as speed, direction, and sound control are sent as radio signals from a smart device to a receiver, which translates those signals into digital information. That digital signal is sent through the rails and picked up only by the appropriate engine — telling it to go, for example, 37 miles per hour, blow the whistle, or smoke more heavily.

SIMPLE, EASY SETUP!

The DCS System is simple to hook up. You’ll have trains running in just minutes using the handheld or the App!

Each WTIU Fixed Input Channel can handle either AC or DC power. You can even mix and run one channel with DC power and the other with AC. This makes it easy to run HO Proto-Sound 3.0 equipped trains using the same WTIU you use to run all other Proto-Sound 2.0 or later locomotives.

Each WTIU Variable Input Channel accepts AC or DC power from virtually all AC or DC power supplies, including all M.T.H. AC transformers like the Z-4000, Z-1000, Z-750 and Z-500.

Once you’ve got power into the TIU, run the outbound channels directly to the track or to a terminal block for larger layouts. We recommend wiring the channels to the track in 15’ sections to best distribute power and the DCS digital signal. Full details are explained in the DCS User Guide.

FEATURES:

  • All-In-One Command Control Transmitter
  • Built-In WiFi
  • 4-Channel Output With Fixed and Variable Voltage Ports
  • 4-Channel AC or DC Power Input Ports
  • Auxiliary Power Input Port
  • USB Input Port
  • RS-232 Serial Port
  • Ethernet Input Port
  • LED Activation Lights
  • DCS Handheld Remote Tether Input
  • AIU Accessory Interface Unit Input
  • (2) Fixed AC and DC Voltage Output For Command Control Tracks
  • (2) Variable AC and DC Voltage Outputs For Conventional and Command Control Tracks
  • Wireless WiFi Control (iOS or Android) Using DCS App
  • Tethered Layout Control Using DCS Handheld Remote
  • PROTO-SOUND 2.0 AND LATER LOCOMOTIVE SOUNDS
    • Labor/Drift
    • Boost/Brake
    • Coupler Operation
    • Volume Increase
    • Engine Start Up
    • Engine Mute
    • Volume Decrease
    • Engine Shut Down
    • Headlight On/Off
    • Proto-Cast On/Off
    • Passenger Station/Freight Yard Proto-Effect Announcements
    • Doppler On/Off
    • Bell, Horn, Engine/Accent Volume
    • Proto-Whistle
    • Chuff Rate
    • Proto-Chuff
    • Cab Chatter
    • Squeaking Brakes
    • Wheel Clickty Clack
    • Custom Sounds
    • Auto Coupler Slack
    • Doppler Loop
  • PROTO-SOUND 2.0 AND LATER LOCOMOTIVE ONBOARD FUNCTIONS
    • Smoke Output Intensity Level Control
    • Smoke On/Off
    • Smoking Whistle
    • Headlight On/Off
    • Ditch Light Control
    • Maximum Engine Speed
    • Acceleration Rate
    • Deceleration Rate
    • Direction Startup Control
    • Labored Smoke
    • Brake Boost
  • PROTO-SOUND 2.0 AND LATER LOCOMOTIVE OPERATION FEATURES:
    • Emergency Stop
    • SoftKey Operation
    • Remote Control Backlight
    • Remote Control Microphone
    • Lashup creation
    • Route Creation
    • Scene Creation
    • Session Record/Playback
    • Resetting Engine Features
    • Reading Engine Information
    • 50 or 60Hz AC Power Selection Input
    • Operate TMCC/Legacy Engines
    • Edit TMCC/Legacy Engine Address
    • Operate Conventional Engines
    • Switch And Accessory Operation

Reviews

There are no reviews yet.

Be the first to review “MTH 50-1039 DCS 2 TIU Track Interface Unit With Wi-Fi” Cancel reply

Related products

-30%
Athearn Genesis G69608 HO Scale F89-F Flatcar Trailer Train TTX 155695 With Mo Pac Trailer
Quick View

Athearn Genesis G69608 HO Scale F89-F Flatcar Trailer Train TTX 155695 With Mo Pac Trailer

$77.99 Original price was: $77.99.$54.59Current price is: $54.59.
-30%
Walthers Mainline 910-2739 HO 40' AAR Modified 1937 Boxcar Seaboard Air Line SAL 19734
Quick View

Walthers Mainline 910-2739 HO 40′ AAR Modified 1937 Boxcar Seaboard Air Line SAL 19734

$24.99 Original price was: $24.99.$17.49Current price is: $17.49.
-30%
Mantua 732-593 HO Scale 35' Tank Car Gulf Oil GATX 15592 - NOS
Quick View

Mantua 732-593 HO Scale 35′ Tank Car Gulf Oil GATX 15592 – NOS

$9.99 Original price was: $9.99.$6.99Current price is: $6.99.
-30%
Walthers Proto 920-13048 HO Scale 73' Budd Baggage Southern Pacific SP - NOS
Quick View

Walthers Proto 920-13048 HO Scale 73′ Budd Baggage Southern Pacific SP – NOS

$69.99 Original price was: $69.99.$48.99Current price is: $48.99.
-30%
Athearn Genesis G68992 HO Scale 50' PC&F Double Plug Boxcar Souther Pacific SP 292838
Quick View

Athearn Genesis G68992 HO Scale 50′ PC&F Double Plug Boxcar Souther Pacific SP 292838

$42.99 Original price was: $42.99.$30.09Current price is: $30.09.
-49%
Athearn Genesis G19362 HO Scale F7A Missouri Pacific MP 925
Quick View

Athearn Genesis G19362 HO Scale F7A Missouri Pacific MP 925

$195.99 Original price was: $195.99.$98.99Current price is: $98.99.
-30%
Chooch 8440 HO Scale Single Cut Stone Bridge Abutment
Quick View

Chooch 8440 HO Scale Single Cut Stone Bridge Abutment

$11.99 Original price was: $11.99.$8.39Current price is: $8.39.
-30%
Rapido Trains 177003A HO Scale X23 Boxcar Pennsylvania Lines PRR Single Car (# Varies)
Quick View

Rapido Trains 177003A HO Scale X23 Boxcar Pennsylvania Lines PRR Single Car (# Varies)

$47.99 Original price was: $47.99.$33.59Current price is: $33.59.
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping & Returns
  • Term and Conditions
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

[contact-form-7 id="15"]
Copyright 2026 © www.modeltrainssale.com
  • HO Scale Model Trains
    • Layout Accessories
    • Vehicles
    • Rolling Stock
    • Couplers and Wheelsets
    • Passenger Cars
    • Locomotives
    • Detail Parts
    • Pre-Order
    • Track and Accessories
    • Decals
    • Freight Cars
  • Trains by Brand
    • Class One Model Works
    • Athearn
    • Bachmann Trains
    • Brekina and PCX87 Vehicles
    • Lionel Trains
    • Tangent Scale Models
    • Rapido Trains
    • Broadway Limited Imports
    • ScaleTrains
    • MTH Electric Trains
    • Atlas Model Railroad Co.
    • Walthers Model Trains
    • LGB
    • Märklin
  • O Gauge Model Trains
    • Pre-Order
    • Locomotives
    • Rolling Stock
    • Holiday Themed
    • Layout Accessories
    • Track and Accessories
    • Power and Command Control
    • Couplers and Wheelsets
  • N Scale Model Trains
    • Pre-Orders
    • Track and Accessories
    • Decals
    • Layout Accessories
    • Locomotives
    • Vehicles
    • Rolling Stock
    • Couplers & Wheelsets
  • Model Train Clearance
  • Login

Login

Lost your password?

Register

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.